On Thursday, the Trump Administration announced that the United States will not be part of the Paris climate accord, calling it a bad deal for the country. Naturally, this didn’t too well with the insane radical left.

The United States will withdraw from the Paris Climate Accord, President Donald Trump will announce at a Rose Garden speech this afternoon. On a conference call with Capitol Hill staffers ahead of the speech, White House energy policy adviser Michael Catanzaro confirmed that “the United States is getting out of the Paris agreement.” Trump, Catanzaro said, “will be open to and will immediately be looking for a better deal.”

Among those upset by news the administration would drop out of the accord was New York Mayor Bill de Blasio and Los Angeles Mayor Eric Garcetti, who — along with other liberal mayors like Rahm Emanuel, Atlanta Mayor Kasim Reed and Boston Mayor Martin J. Walsh — said they would essentially usurp federal authority as laid out by the Constitution and adopt the accord in their cities.

Eyeing Trump’s repeated threats about leaving the Paris accords, Los Angeles mayor Eric Garcetti last November rallied 71 US mayors, whose cities are home to tens of millions of people, to sign an open letter calling on the then-president-elect to stay in the agreement. Garcetti didn’t mince his words in an interview with Quartz in January, saying: “If we were to withdraw…from the Paris accords, I’ll tell you what we’re going to do: we’re going to adopt it locally.”

“I plan to sign an executive order maintaining New York City’s commitment to the Paris Agreement,” de Blasio said in a tweet.

But we'll take matters into our own hands. I plan to sign an executive order maintaining New York City’s commitment to the Paris Agreement. https://t.co/8oByikDt7C

A post at Wired said Garcetti’s statement was “strange” because cities don’t sign international treaties, adding:

Countries do. But the slightly strange terms of the Paris Agreement—every signatory agreed to voluntary cuts in emissions called Nationally Determined Contributions, and the US Senate didn’t ratify it before it became international law—well, maybe a mayor could sign? Somehow? And that would be awesome?

“We do see ourselves as signatories,” says George Kivork, Mayor Garcetti’s press secretary. “It’s essentially saying, we’re going to continue the steps we said we were going to take when our country was committed to the Paris Agreement. We’re going to continue taking those actions.”

No, it wouldn’t be awesome, because that’s the role of the federal government. If cities run by liberal anti-Trump mayors decide they can do as they please and disregard any authority other than their own left-wing worldview, then they might as well secede and declare themselves separate nations — a Confederacy, if you will. And we all know what happened to the last Confederacy.